Chris, who’s 26, was flooded with messages of support from his 1.9 million followers, who thanked him for raising awareness of the disease.

In November he was also praised for stripping off and showing men that there is nothing to be embarrassed about by getting their testicles examined.

The reality star, who was on the 2017 series of Love Island, decided to go public to encourage other men to get checked, after having his own health scare when he was a teenager and three operations on his left testicle.

He revealed on This Morning that his cousin had testicular cancer and that both of his brothers were infertile.

He also admitted that he didn’t get examined until he was 20 years old, saying: “Because it doesn’t come with a lot of pain it’s easy to neglect.

“Everyone thinks they know their body. There’s a right way to check them. I’ll be honest with you it’s not something you grab hold of in everyday life. You wash yourself but don’t necessarily use your fingers to identify.”

Testicular cancer is the most commonly diagnosed cancer in young men, and Cancer Research UK says around 2,200 men in the UK are diagnosed each year. It is more likely if you have a family history of the disease.

But research from male cancer charity Orchid shows that 68% of men don’t know how to check their testicles properly.

The Movember Foundation’s advice is: “If you notice a change in size or shape, a lump that wasn’t there before, or if they become painful to touch, see a doctor.”

Chris echoes their message: “Testicular cancer is a silent killer, men need to realise this and check themselves regularly. It takes 10 seconds. Please do it.”

How to check your testicles

A good time to check your testicles is after a warm bath or shower, when the skin is relaxed.

Cup your hand under them and check for swelling and lumps.

Roll each testicle between your finger and thumb and feel the weight.

The NHS says most men’s testicles are around the same size, although it’s common for one to be slightly bigger than the other or hang lower.

There might be something wrong if you find a hard lump on the front or side of a testicle, a testicle is swollen, or if there’s pain or discomfort in a testicle or in the scrotum (the sac that holds the testicles).

If you’ve been affected by any of the issues in this article you can check out the BBC Advice pages for help.